<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>bom编程</title>
		<script>
				console.log(window.screen.width)
				console.log(window.screen.height)
				console.log(window.screen.availWidth)
				console.log(window.screen.availHeight)
				console.log(navigator.userAgent)
				// location.href = "http://www.baidu.com"
				back();
				forward();
		</script>
	</head>
	<body>
		<!--  -->
		
	</body>
</html>